Electric-light receptacle.



H. D. BROWN & L. W; BLYMYER.

ELECTRIC LIGHT REGEPTAOLE.

APPLIOATION TILED 00T.6 1909.

979,927, Patented Dec. 27, 1910.

fnwniar's. fAZ/VRI D BROWN 5 :0 W ZAY/ fTTE, LYMYCR attorney-s.

UNITED STATES PATENT OFFICE.

HENRY 1). BROWN AND LAYFETTE W. BLYMYER, OF LOS ANGELES, CALIFORNIA.

ELECTRIC-LIGHT RECEPTACLE.

To all whom it may concern:

Be it known that we, HENRY D. BROWN and LAYFETTE W. BLYMYER, both citizens of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Electric-Light Receptacles, of which the following is a specification.

This invention relates more specifically to a means for securing electric light receptacles in place on metallic electric light sign boards, and a main object is to provide a simple and efficient means that may be formed integrally with electric light receptacles, or detachably secured thereto, whereby they may be instantly secured in place on metallic electric sign boards without the use of any additional attaching or securing means.

Heretofore in the formation of metallic electric light signs, the receptacles for electric bulbs have been soldered or otherwise secured to the sign board, a plurality of apertures being formed in the metallic base and arranged in the desired design. This method of securing the receptacles has been found to be both tedious, unsatisfactory and expensive, consuming a great deal of time in their securement to the sign base, besides the constant liability of detachment therefrom. By the employment of our improved means the receptacles may be instantly attached to or detached from the sign base in a minimum amount of time without the use of solder or other securing means.

In the drawings hereto annexed and forming a part of this specification: Figure l is a perspective view of an electric light receptacle equipped with our improved fastening means in place on a sign base. Fig. 2 is a face view of the receptacle in a partially locked position on the sign base. Fig. 3- is a face view of a portion of the sign base, showing the configuration of one of the receptacle apertures. Fig. 4 is a perspective view of the receptacle, and the locking means removed therefrom. Fig. 5 is a central longitudinal section through the receptacle.

Referring more particularly to the drawings 5 designates a cylindrical receptacle foripedbpf an electricin insulating matlerial,

re era y porcelain, avin the usua me- ?allio screw threaded bushi g 6 and a centrally disposed aperture 7 for the passage Specification of Letters Patent.

Application filed October 6, 1909.

Patented Dec. 27, 1910. Serial No. 521,289.

therethrough of the electric wires (not shown). The receptacle is provided with an annular groove 8, the inner wall 9 being provided with an annular shoulder 10 designed to maintain an annular metal locking member 11 in detachable relation thereto. The form of receptacle illustrated is admirably adapted for the reception of the receptacle locking member, but other forms may be used and the locking member may be rigidly instead of detachably secured thereto.

The locking member comprises a cylindrical body 12 preferably formed of light resilient metal such as spring brass provided on its upper edge with an annular flange l3 projecting at right angles to the body. This flange is provided with two radial cuts 14, 15, diametrically opposite each other that divide the flange into portions 16, 17, the ends 18, 19 of the flange portions being turned or flared upwardly so as to engage the edge of the apertures formed in the metal sign base 20 as will be more particularly described hereinafter. The body 12 of the locking member is provided with a plurality of tongues 21 that project beyond the lower edge of the body member and are adapt-ed to enter open ended slots 22 formed in the sides of the receptacle and hold member 11 in a rigid and fixed position. Located directly above each of tongues 21 are spring catches 23 which are bent inwardly and engage the annular shoulder 10 formed on wall 9 of the receptacle, thus locking the cylindrical body rigldly to the receptacle. When the locking member 11 is in place on the receptacle, the distance between the under face of flange 13 and the upper edge of wall 24 which forms the groove Swill be sufiicient to permit the insertion of the cir cular edge of the sign base plate 25 to which the receptacle is detachably secured.

The, sign base 25 is preferably formed from metal of sufiicient gage to insure durability when erected, and the electric light receptacles are secured from the rear there of, as clearly shown in Fig. l of the drawings. Apertures 30 are formed in the sign base by means of a die and are arranged in the desired design. These apertures are circular in form as clearly illustrated in Fig. 3 of the drawings and each aperture is pro vided wit-h a pair of notches 31, 32, preferably oppositely disposed, the diameter across the aperture 30 which asses through the notches 31, 32, being shghtly greater than the diameter across locking member 11 on the flange end, the purpose being to permit-the engagement of the turned up ends 18, 19, of the flange 11 with the annular edges 33, 34, that form the aperture 30 in the sign base.

It will be apparent that when attaching the receptacles to the sign base that the flared ends 18, 19, of the locking member 11 will engage the ends 35, 36, of the edges 33, 34, which form the aperture 30 and when rotated in the direction indicated by the arrow in Fig. 2 of the drawings the edges 33, 34;, will pass beneath the flange 13 and the upper edge of Wall 24 which forms a part of the groove 8, the ends 37, 38, of the flange 13 being released by the ends 39, 40, of the edges 33, 3 1, thus securely locking the receptacle to the sign base 25. If desired the flared ends 18, 19, of the locking members may be forced downwardly, and a drop of solder applied thereto will effectually prevent the detachment of the receptacle. It will be noted that when the ends 37, 38 pass the ends 39, 10, of the edges 33, 3 1, that the two adjacent edges will abut and prevent rotation of the receptacle in one direction.

It will be observed from the foregoing description that we have provided a novel device whereby electric light receptacles may be instantly attached to metallic electric light sign bases and locked thereto without employing securing means other than that formed on the receptacle and sign base.

Having described our invention what we claim as new and desire to secure by Letters Patent is 1. In a device of the class described, the combination of a sign base provided with an aperture with a notch in the edge thereof, of an electric light receptacle and a looking member carried thereby, said member engaging the edge of the aperture at said notch by a rotary movement and pressing said edge on the inner side and outer side to lock said receptacle thereto.

2. The combination of a sign base provided with an aperture having notches in the edge thereof, of an electric light receptacle formed ofins u l gting mate rial, a metallic locking member secured in detachable relation to said receptacle, said member having a flange with slits adapted to engage the edges of the aperture at said notches where by the receptacle is maintained in a detachable locked relation therewith, by a rotary movement.

In witness that we claim the foregoing we have hereunto subscribed our names this 28 day of September, 1909.

HENRY D. BROWN. L. W. BLYMYER.

Witnesses:

EDMUND A. STRAUsE, ETHEL COLEMAN. 

